#0  0x00007f1e4690d967 in tz_query_answered (object=0x7f1e74f56c00, res=<optimized out>, self=self@entry=0x7f1e74e77310) at datetime-prefs.c:272
  [Error: datetime-prefs.c was not found in source tree]
#1  0x00007f1e71a6103e in g_simple_async_result_complete (simple=0x7f1e75241840) at /build/buildd/glib2.0-2.33.6/./gio/gsimpleasyncresult.c:775
  [Error: /build/buildd/glib2.0-2.33.6/./gio/gsimpleasyncresult.c was not found in source tree]
#2  0x00007f1e71abfc73 in reply_cb (connection=<optimized out>, res=0x7f1e74eb72d0, user_data=user_data@entry=0x7f1e75241840) at /build/buildd/glib2.0-2.33.6/./gio/gdbusproxy.c:2632
  [Error: /build/buildd/glib2.0-2.33.6/./gio/gdbusproxy.c was not found in source tree]
#3  0x00007f1e71a6103e in g_simple_async_result_complete (simple=0x7f1e74eb72d0) at /build/buildd/glib2.0-2.33.6/./gio/gsimpleasyncresult.c:775
  [Error: /build/buildd/glib2.0-2.33.6/./gio/gsimpleasyncresult.c was not found in source tree]
#4  0x00007f1e71ab5dce in g_dbus_connection_call_done (source=0x7f1e74ea6c80, result=<optimized out>, user_data=user_data@entry=0x7f1e753d4830) at /build/buildd/glib2.0-2.33.6/./gio/gdbusconnection.c:5333
  [Error: /build/buildd/glib2.0-2.33.6/./gio/gdbusconnection.c was not found in source tree]
#5  0x00007f1e71a6103e in g_simple_async_result_complete (simple=0x7f1e75105c10) at /build/buildd/glib2.0-2.33.6/./gio/gsimpleasyncresult.c:775
  [Error: /build/buildd/glib2.0-2.33.6/./gio/gsimpleasyncresult.c was not found in source tree]
#6  0x00007f1e71a6116c in complete_in_idle_cb (data=0x7f1e75105c10) at /build/buildd/glib2.0-2.33.6/./gio/gsimpleasyncresult.c:787
  [Error: /build/buildd/glib2.0-2.33.6/./gio/gsimpleasyncresult.c was not found in source tree]
#7  0x00007f1e714f0c65 in g_main_dispatch (context=0x7f1e74e6a000) at /build/buildd/glib2.0-2.33.6/./glib/gmain.c:2691
  [Error: /build/buildd/glib2.0-2.33.6/./glib/gmain.c was not found in source tree]
#8  g_main_context_dispatch (context=context@entry=0x7f1e74e6a000) at /build/buildd/glib2.0-2.33.6/./glib/gmain.c:3195
  [Error: /build/buildd/glib2.0-2.33.6/./glib/gmain.c was not found in source tree]
#9  0x00007f1e714f0f98 in g_main_context_iterate (context=context@entry=0x7f1e74e6a000, block=block@entry=1, dispatch=dispatch@entry=1, self=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at /build/buildd/glib2.0-2.33.6/./glib/gmain.c:3266
  [Error: /build/buildd/glib2.0-2.33.6/./glib/gmain.c was not found in source tree]
#10 0x00007f1e714f1054 in g_main_context_iteration (context=0x7f1e74e6a000, context@entry=0x0, may_block=may_block@entry=1) at /build/buildd/glib2.0-2.33.6/./glib/gmain.c:3327
  [Error: /build/buildd/glib2.0-2.33.6/./glib/gmain.c was not found in source tree]
#11 0x00007f1e71a9072c in g_application_run (application=0x7f1e74ea6380, argc=argc@entry=2, argv=argv@entry=0x7fff807c3ea8) at /build/buildd/glib2.0-2.33.6/./gio/gapplication.c:1607
  [Error: /build/buildd/glib2.0-2.33.6/./gio/gapplication.c was not found in source tree]
#12 0x00007f1e7366e86a in main (argc=2, argv=0x7fff807c3ea8) at control-center.c:207
  202:   g_signal_connect (application, "startup",
  203:                     G_CALLBACK (application_startup_cb), shell);
  204:   g_signal_connect (application, "command-line",
  205:                     G_CALLBACK (application_command_line_cb), shell);
  206: 
  207:   status = g_application_run (G_APPLICATION (application), argc, argv);
  208: 
  209:   g_object_unref (application);
  210: 
  211:   return status;
  212: }